CTICasesPulmonary Kaposi Sarcoma
Imaging findings
Chest CT shows bilateral, ill-defined, nodular, and flame-shaped opacities extending along the bronchovascular bundles from the hilum, accompanied by pleural effusions. Clinical photographs confirm classic violaceous plaques on the lower extremities, and airway biopsy is diagnostic for Kaposi sarcoma.
Key takeaways
Pulmonary Kaposi sarcoma is a major opportunistic neoplasm in HIV/AIDS patients. It classically manifests on CT as bilateral, flame-shaped bronchovascular nodules and interlobular septal thickening, often associated with tracheobronchial mucosal lesions that appear as cherry-red plaques on bronchoscopy.
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